1112123501 has 2 divisors, whose sum is σ = 1112123502. Its totient is φ = 1112123500.

The previous prime is 1112123479. The next prime is 1112123533. The reversal of 1112123501 is 1053212111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1093624900 + 18498601 = 33070^2 + 4301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112123501 - 2⁶ = 1112123437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1112123501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112323501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556061750 + 556061751.

It is an arithmetic number, because the mean of its divisors is an integer number (556061751).

Almost surely, 2^1112123501 is an apocalyptic number.

It is an amenable number.

1112123501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112123501 is an equidigital number, since it uses as much as digits as its factorization.

1112123501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1112123501 is about 33348.5157240918. The cubic root of 1112123501 is about 1036.0586462356.

Adding to 1112123501 its reverse (1053212111), we get a palindrome (2165335612).

The spelling of 1112123501 in words is "one billion, one hundred twelve million, one hundred twenty-three thousand, five hundred one".